What I find most interesting is that the sensitive personality (INFJ) and the adventurous personality (ISTP) have similiar attributes but for entirely different reasons.

For instance, adrenaline (short term) is associated with the AP while cortisol (long term) is associated with the SP but both are stress hormones.

Despite being a "safety seeking" personality, a sensitive personality can also have (rather ironically) a "sensation seeking" component - meaning, they get off on bungee jumping.

An Adventurous personality "fights" the limitations required of intimacy while the sensitive personality flees - petrified - of intimacy itself. A sensitive person can self-annihilate / lose themselves in intimacy, which drives the fear, while the adventurous personality cannot invest too much of himself in it because it ties him down.

In short, the drives are opposed to each other but result in the same disposition in certain cases. That blows my mind.

Literature adds to reality, it does not simply describe it. It enriches the necessary competencies that daily life requires and provides; and in this respect, it irrigates the deserts that our lives have already become. CS Lewis.